It’s certainly an interesting idea, and - assuming I like it - I myself would have no objections to eating it as long as it “tests OK” as far as it’s composition/chemical/biochemical constituents.
As for the processes that create it, that’s potentially another set of issues altogether. Which is how I feel about GMOs (and for that matter, “organic” food). Unlike - or so I gather - the majority of its opponents (at least the vocal ones, on the Web) I have zero concerns about GMO foods’ potential detrimental impact on my health, and 45+ years since it’s been any sort of A Thing, I’ve yet to see any concrete evidence (significant or otherwise) that organic food is in fact any healthier to eat than reasonably-regulated conventional crops - my concerns/opinions about those things relate entirely to their long-term impact on the environment. (Which, much like humans’ contribution to climate change, we won’t know for decades (or longer), by which time, any hope of “stopping” any serious problems will be ancient history and the best we’ll be able to do (if we’re willing to do it even then) is avoid making the situation worse.
And unlike GMO agricultural, for example, it superficially seems much more possible to control any environmental impact (even in the broadest sense) because presumably it would all be done “indoors”, in controlled environments. (Of course that assumes adequate regulation, but what human activity doesn’t have the potential to wreak havoc on the environment if it’s not regulated?) I mean, I don’t imagine we’ll have little “artificially culture pork chops” gamboling about in fields, possibly spreading their laboratory-rearranged genomes or other bits freely into the ecosphere…
I also frankly like the idea of being able to “eat animals and have them too” (even if it means “having” many fewer of them), I have no vested interest in killing things for food. I’m not so unhappy about it that I’m vegetarian, but I’d be delighted to be able to “eat meat” without raising animals to be killed for it.
As for putting a relatively small number of people (in the scheme of the total population of workers in the world), um, yeah, well, times change, jobs change. In the very short term, I suppose some animals might be “put down”, but more likely the “last of their kind” would be “slaughtered for meat” just like their forebears (and there would no doubt be a continuing niche market for purists, able and willing to pay for their purism, just as the case is now, for some/other foods and other “luxury” goods), and farmers would stop breeding animals for food. Which, frankly, would be fine by me. I see no logical imperative, much less a moral one, in continuing to breed animals for food for its own sake…